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# Q32: To develop more accurate population forecasts,

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Manager
Joined: 26 Aug 2006
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Q32: To develop more accurate population forecasts, [#permalink]

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25 May 2007, 21:18
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Q32:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.
A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical
Director
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26 May 2007, 00:48
johnycute wrote:
Its B.

"Would" changes the meaning.

Why not 'D'????

Demographers need to know more ...
Senior Manager
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26 May 2007, 02:27
D!

"Economical " is not correct adjective. it must be ECONOMIC

in A no parallelizm ("they do" is omitted )
Manager
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26 May 2007, 06:56
UMB wrote:
D!

"Economical " is not correct adjective. it must be ECONOMIC

in A no parallelizm ("they do" is omitted )

D for the same reason, and by the way, "have to know" and "would have to know" are both appropriate
Manager
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26 May 2007, 11:46
i think both economical and economics is correct....

http://dictionary.reference.com/browse/economical
it can be used as
aspects of social, political, and economical life

i will go with B.

Manager
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26 May 2007, 11:52
I think it is E as it uses "would" and maintanins parallelism " social and economical"
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27 May 2007, 17:44
bhaarat wrote:
Q32:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.
A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

OA is E.
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27 May 2007, 23:21
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic => have to know is wrong here
B. have to know a great deal more than they do now about the social and economical => have to know is wrong here
C. would have to know a great deal more than they do now about the social and economical => "they" is wordy
D. would have to know a great deal more than they do now about the social and economic => not ||
E. would have to know a great deal more than now about the social and economical

Though at first i felt that "economical" changes meaning and had select D
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